26Virgin birth
In 2008, a female Atlantic blacktip shark gave birth without having sex. This is the second recorded case of asexual reproduction in sharks.
27. In the last 64 years, humans have slain 90% of the world's sharks.
28. When filming Jaws 2, cast members were circled by actual hammerhead sharks. Because the scene called for the actors to yell for help, the crew did not immediately realize they were in danger.
29. Internet cables that cross the Atlantic Ocean on the sea bed are only as thick as a Magic Marker Pen in deep seas. Sharks like chewing these cables though it's not known why. Sharks can sense electromagnetic fields so they may be attracted to the current.
30. Park officials of the Roatan Marine Park in Honduras have attempted to train sharks to feed on lionfish as of 2011 in an attempt to control the invasive lionfish populations in the Caribbean.
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31Humans
Humans aren't appropriate prey for great white sharks because their digestion is too slow to cope with the high ratio of bone to muscle and fat.
32. The Greenland shark is a giant species of shark that lives under ice near the north pole and eats polar bears. Vikings used to hunt them and eat their flesh even though it stinks and tastes like pee.
33. Shark's teeth are coated with fluoride, which acts like toothpaste and keeps the shark's mouth healthy and clean.
34. In 1982, during the dissection of a mother tiger shark, a scientist named Stewart Springer reaching into the birth canal was bitten by a tiger shark embryo, which are notoriously cannibalistic. This is the only recorded instance where someone was bitten by an unborn animal.
35. An Orca can put a great white shark to sleep by turning it over on its back. The Orca then drowns the shark, only to eat the liver and the tongue.
